CN1712866A - Central part of small water cyclic heat pump - Google Patents
Central part of small water cyclic heat pump Download PDFInfo
- Publication number
- CN1712866A CN1712866A CNA2004100618797A CN200410061879A CN1712866A CN 1712866 A CN1712866 A CN 1712866A CN A2004100618797 A CNA2004100618797 A CN A2004100618797A CN 200410061879 A CN200410061879 A CN 200410061879A CN 1712866 A CN1712866 A CN 1712866A
- Authority
- CN
- China
- Prior art keywords
- heat pump
- heat
- heat exchanger
- support base
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Central Heating Systems (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention concerns an assembly comprising a compressor unit (10), inlets (23) and outlets (24) to a heat collecting network, inlets (33) and outlets (34) to a heat return network, and two heat exchangers (20, 30) coupled to the compressor unit and to the inlets and outlets. The link tubes (21, 22, 31, 32) between the heat exchangers and the compressor unit, and/or the link tubes (25, 26, 35 36) between the heat exchangers and the heat collecting and return networks are non-brazed link tubes, formed with welded, in particular by orbital TIG welding, stainless steel tubes. The whole assembly is enclosed in a insulating sealed confinement chamber (40) comprising a support base (41) and a cover (42) welded together.
Description
Technical field
The present invention relates to the water loop heat pump.
Background technology
Such equipment allows to utilize the heat energy in air, upper strata, soil or the Free water, concentrates such heat energy and it is fed to hot water center heater with this form (with higher temperature).
" water loop " heat pump refers to and utilizes loop and heating circuit all to be filled with a kind of equipment of liquid.It is different from " water/air " or " air/air " equipment.As required, must consider that for example in utilizing the loop, water can be replaced or implemented by other a liquid.For the water in this loop, the most frequent is to add ethylene glycol as antifreezing agent.
Use the obtainable interests of heat pump to be its principle,, need be less than the heat energy that it transmits to the energy that it is supplied with according to this principle.For this ability is described, (COP) ratio of one " coefficient of performance " between the ability that ability and system absorbed that taking into account system transmits.This ratio can reach 5 in the obtainable best equipment at present usually.More particularly, heat pump comprises a compressor assembly and two heat exchangers, and a heat exchanger is connected to and utilizes the loop, and another then is connected to heating circuit.All heat exchangers are connected to compressor assembly on opposite side, a focus that is connected to compressor, and another then is connected to its cold spot.In compressor assembly, can be provided with a condenser, an expander and a vaporizer.Compressor is concentrated the energy utilized in condenser one side, and it is coldly spilt into the utilizing in the loop of vaporizer one side.
When heat exchange be preferred and compressor and heat exchanger with possible, when carrying out work with the state of ambient atmosphere optimal isolation, overall performance the best of heat pump.
Compressor, its inner refrigerating gas and two heat-exchanger are connected in the same functional unit, hereinafter are referred to as " water loop heat pump core ".This assembly forms then to be connected to and is used to utilize and the manifold (pipe, circulating pump, section hot device etc.) that heats, the feeding mechanism of whole system and a device group of adjusting device.
The heat pump that is provided is provided with the inside connection that utilizes pipe-line system so far, and they are to realize by the method that the special technology in refrigeration and the firing equipment is used always.
More particularly, between compressor and the heat exchanger and the connector between the inlet/outlet of heat exchanger and utilization and heating circuit be the brass tube that is connected by soldering.
But, in heat pump, using brass tube to be connected with soldering is not to be can not bring shortcoming.
At first, brass has the characteristic of high thermoconductivity, and in should using, because such high thermoconductivity can cause the heat exchange additional with environment, so be not favourable.
Secondly, soldering connects, even correct nothing is leaked, its mechanical strength is not high yet, and corrosion may take place.As everyone knows, soldering is that copper pipe is heated to one the 3rd metal (for example, when performance need, the 3rd metal is silver) on its fusing point two kinds of different metals are assembled together.Because compressor is made of steel, and heat exchanger is made with steel or stainless steel, then in all soldered joints, these parts that connected by brass tube are the changes that have metal species: steel/brass or stainless steel/brass, and also to add one the 3rd metal.
These connectors may be subjected to the vibration from compressor, design too during rigidity, will soon seepage or even fracture.
For fear of this shortcoming, brass tube is usually designed to and guarantees flexibility in manifold.This is by using length pipe long and/or suitable geometry (lyre shape, spirality etc.) to realize that they can absorb mechanical stress, most vibration transmission.
But, such tube length lengthening can make the heat exchange surface increase with ambient atmosphere, thereby the loss utilisable energy, and has increased the volume of compressors gas.
Summary of the invention
Target of the present invention is, all is being that preferred water loop heat pump core assigns to overcome these shortcomings aspect performance and compactedness and the reliability by introducing a kind of.
Water loop heat pump of the present invention meets top describe, in general terms, that is, more specifically and with itself comprise with regard to known mode: a compressor assembly, it comprises a closed-loop path that is filled with refrigerating gas, and it also has compressor, condenser, expander and vaporizer; Entrance and exit on a side of heat, the entrance and exit on a cold side; One first heat exchanger, it is attached to the vaporizer of compressor assembly with its master, and is attached to its secondary side and utilizes the loop; And, one second heat exchanger, it is attached to the condenser of compressor assembly with its master, and is attached to heating circuit with its secondary side.
In a kind of mode as feature of the present invention, connector between heat exchanger and the compressor assembly and/or heat exchanger and lead to and from utilize and heating circuit between connector be not to adopt braze, and with the stainless steel tube that welds.
By replace the brass tube that is still using so far with stainless steel tube, and by be not soldering but the welding connection, continuity just no longer appears in the connection in the water loop heat pump core interrupts, and makes it greatly be higher than the situation that they use brass pipeline and soldering in the performance aspect the anti-mechanical force (particularly for vibration) and the performance of aspect against corrosion.
As everyone knows, if welding correctly then be equal to original pipe aspect mechanical strength and the seal.
Especially, the vibration that compressor sent can not cause such connector fracture, and the mechanical strength of stainless steel tube and heat exchanger, geometry and flexible can being designed to absorb such vibration in short and loop that diameter is little, these all be employed so far brass tube can not accomplish.
Reducing on the size allows to reduce added heat exchange between gas and the environment with identical ratio, thereby also reduced the required gas volume of energy loss and equipment in proportion.Except reducing described exposure, additional heat exchange also will have than the much lower pyroconductivity of brass and owing to no longer needs to be fastened on the framework and reduce to fix all heat exchangers owing to steel.By an advantage on this, can suppress the heat bridge between heat exchanger and the ambient atmosphere.
Therefore, may greatly increase the coefficient of performance of heat pump, can increase by 1 to 2 point usually, this means that this coefficient of performance can reach 6 to 7 scope, such numerical value is far above present performance that can obtainable best equipment.
Needed pipe welding advantageously realizes by circular orbit TIG (tungsten electrode arc inert gas shielding) welding; this is a kind of complete in check technology that can carry out automatically; thereby have the required argument that can accurately control and an outstanding repeatability, from and the reliability of equipment is improved.In addition, circular orbit TIG welding allows to control the rising of compressor main body temperature in welding process, thereby has avoided the weakening to it.
The preferably stainless manifold shape of heat exchanger coaxial heat-exchanger.
Such heat exchanger is very suitable to be the heat pump core of the stainless steel tube of welding according to of the present invention, wherein all connectors, and they are better than the plate-type exchanger that the most often uses in the heat pump of standard.Even if plate-type exchanger can guarantee good heat exchange, but they are fragility, and be easier to make water to have mineral matter, this can cause owing to the introducing of deposition or impurity stopping up.Last point, their mechanical strength has limitation, particularly when they are subjected to continuous vibration.
Because the significantly improving of reliability, the inner components that just need not to keep again touching heat pump after well in initial production.Thereby, all these parts (connector between compressor assembly, heat exchanger, heat exchanger and the compressor and heat exchanger and pass to and from utilize and the entrance and exit of heating network between connector) can be limited in the housing, form unique, an airtight and functional devices group of isolating.
Advantageously, this airtight housing can comprise that one admits compressor assembly and covers their hood to the support base and of the pipe connections of heat exchanger, and this support base and hood for example for good and all combine by welding (if they all use metal words).The remaining free space of enclosure interior can be filled with a kind of heat-barrier material, then, equips a suitable inaccessible hole to support base, to introduce this heat-barrier material.
Can apply vacuum to the inner atmosphere of housing, perhaps can fill suitable, dry a, insulated gas to it, then, equip a suitable inaccessible hole to support base, this inner atmosphere is led in this hole, to apply vacuum or to introduce gas.
Preferably, utilizing the entrance and exit of loop and heating circuit and inaccessible hole all to assemble is arranged on the support base.
The accompanying drawing summary
We are existing to describe the example of a basis water loop heat pump core below, that content that the present invention teaches is set up with reference to appended unique 3D schematic diagram, and this accompanying drawing has been represented the component part of this heat pump core.
The specific embodiment
In the accompanying drawings, label 10 illustrates compressor assembly, and it is a device group that is filled with the closed-loop path of gas, comprises a compressor 11, a vaporizer, a condenser 13 and an expander 14.The engine of compressor for example is a motor, and this motor is by powering from hull outside and the circuit that is connected to utility network.
One first heat exchanger 20 is attached to the vaporizer 12 of compressor assembly 10 by two connectors 21 and 22 on its master.It is connected to inlet 23 and outlet 24 on its secondary side, utilize the loop to be connected to one again; Realize to the connection of opening 23,24 by pipe 25,26.
One second heat exchanger 30 is attached to the condenser 13 of compressor assembly 10 by two connectors 31 and 32 on its master.It is connected to inlet 33 and the outlet 34 that passes to heating circuit from heating circuit on its secondary side; Realize to the connection of opening 33,34 by pipe 35,36.
The preferably stainless welding interlinkage of heat exchanger 20 and 30 multitube shape (cabled multi-tubular) heat exchanger, its size designs according to the rated power of compressor, so that they can guarantee to lead to heating circuit and from the optimum heat exchange that utilizes the loop.
In a kind of mode as feature of the present invention, connector 21,22,31,32 between compressor 10 and heat exchanger 20 and 30 and heat exchanger 20 and 30 and lead to and from the inlet 23,22 that utilizes loop and heating circuit and export between 24,34 connector 25,26,35,36 by means of the welding stainless steel tube guarantee.The diameter of these pipes is preferred, do not move so that this connector can disturbance fluid (gas that circulates in the loop or liquid), and its length becomes to realize that in the shortest possible mode this is connected with geometry design.
In addition, owing to be welded to connect the outstanding mechanical strength of part, all heat exchangers can only be supported by pipe 21,22,25,26 (or 31,32,35,36 (on opposite sides)), these pipes hold them in the position, and need not to be attached at fixture on the framework, that may produce any kind of heat bridge.
In the shape of a spiral or a narrow tube 16 of multi-circle spiral flow form (also stainless steel make) make the compression function fill its gas, and allow such filling controlled.In hull outside, may prolong this stainless steel tube by a bypass, being connected to gas tank by the method that Refrigeration Technique is used always.
The constituent part gathering of described just now water loop heat pump core is arranged in the housing 40, and this housing self is made of two parts: a support base 41 and a hood 42.Advantageously, the entrance and exit that all are useful and all are assembled to the path of the part of heat pump core and are arranged on the support base 41, particularly lead to and from the inlet 23,33 that utilizes loop and heating circuit and export 24,34.On supporting base 41, also be provided with: the fork-join circuit 43 that is used for the motor of compressor 11 is carried out feed, the inaccessible hole that permission communicates with the internal freedom space of housing when hood 42 is closed, and an interface-crossover 45 of pipeline 16 that is used to introduce or control the gas of compressor.
Like this,, just can fasten it easily because hood 42 only is made of single part, for example sheet metal, and without any need for interface-crossover.It sealably closes on the support base 41, to form an airtight housing around the heat pump core.When hood and support base are all made with metal, thus sealing even can be advantageously form an inseparable functional unit and realize by these two parts are welded together.Also can consider to use the mode of other permanent seal, for example can not then come permanent seal during metal solder when hood and/or supporting base by gummed.
Advantageously, after seal casinghousing, introducing the heat-barrier material in all internal freedom spaces of filling housing by hole 44, for example is suitable powder or expanded material, and such heat-barrier material will make additional heat exchange minimum, thereby improve the performance of equipment.In addition, such filling has reduced to reach the outside machinery and the vibration of sound from compressor.
After filling, can apply vacuum to airtight housing, perhaps can fill the thermal insulation dry gas better, for example argon gas or sulfur hexafluoride to it than air.
At last, because it is straight, unbending arriving the pipe 26 and 36 of utilization and heat cycles peak, the inside drainage switch that the automatic drainage switch 46 by a pipe 48 supporting of just can sliding constitutes, described pipe 48 has a hole 50 on joint in its bottom that is positioned at housing 40 outsides, described joint screw thread connects or otherwise closely is attached on the opening of pipe 26 or 36 outsides.If necessary, these drainage switches of placing (shown in scheming upward) from the outside can be changed afterwards easily.
Claims (11)
1. water loop heat pump, this heat pump comprises:
--a compressor assembly (10), it comprises the refrigerating gas closed-loop path that has a compressor (11), a condenser (12), an expander (14) and a vaporizer (12),
--from utilizing an inlet (23) and in loop to export (24) with leading to,
--from exporting (34) with an inlet (33) and that leads to a heating circuit,
--one first heat exchanger (20), it is attached to the vaporizer of compressor assembly on its master, and is attached to the entrance and exit that utilizes the loop on its secondary side; And,
--one second heat exchanger, it is attached to the condenser of compressor assembly on its master, and is attached to the entrance and exit of heating circuit on its secondary side,
It is characterized in that, connector (21 between heat exchanger and the compressor assembly, 22,31,32) and/or the connector between the entrance and exit of heat exchanger and utilization and heating circuit (25,26,35,36) be the non brazing connector made of stainless steel tube with welding.
2. heat pump as claimed in claim 1 is characterized in that stainless steel tube welds by circular orbit TIG.
3. heat pump as claimed in claim 1 is characterized in that, heat exchanger (20,30) is stainless manifold shape coaxial heat-exchanger.
4. heat pump as claimed in claim 1, it is characterized in that, connector between compressor assembly, heat exchanger, heat exchanger and the compressor and heat exchanger and pass to and from utilize and the entrance and exit of heating circuit between connector be enclosed in the airtight housing case (40).
5. heat pump as claimed in claim 1 is characterized in that heat exchanger does not have they are attached to the bearing support of scaffold substantially.
6. heat pump as claimed in claim 1 is characterized in that, housing case (40) comprise one the supporting compressor assembly and to heat exchanger support base (41) and be installed to described suprabasil hood (42).
7. heat pump as claimed in claim 6 is characterized in that, support base (41) and hood (42) are attached at together in permanent mode.
8. heat pump as claimed in claim 6 is characterized in that, fills the remaining free space of housing case inside with a kind of heat-barrier material, and support base (41) is provided with an inaccessible hole (44), in order to introduce described heat-barrier material.
9. heat pump as claimed in claim 6 is characterized in that, the inner atmosphere of housing case is applied vacuum, and support base (41) is provided with an inaccessible hole (44) that is communicated with described atmosphere, in order to apply described vacuum.
10. heat pump as claimed in claim 6 is characterized in that, the inner atmosphere of housing case is filled dry insulated gas, and support base (41) is provided with an inaccessible hole (44) that is communicated with described atmosphere, in order to introduce described vacuum.
11. as each described heat pump in the claim 8 to 10, it is characterized in that, utilize the entrance and exit (24,34) of the entrance and exit (23,24) in loop and heating circuit and described inaccessible hole (44) all to assemble and be arranged on the described support base.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0406398A FR2871559B1 (en) | 2004-06-14 | 2004-06-14 | COMPACT HEAT PUMP HEAT OF WATER / WATER TYPE |
| FR0406398 | 2004-06-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712866A true CN1712866A (en) | 2005-12-28 |
| CN100351590C CN100351590C (en) | 2007-11-28 |
Family
ID=34946198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100618797A Expired - Fee Related CN100351590C (en) | 2004-06-14 | 2004-06-25 | Central part of small water cyclic heat pump |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20080196872A1 (en) |
| EP (1) | EP1766301B1 (en) |
| CN (1) | CN100351590C (en) |
| AT (1) | ATE420328T1 (en) |
| CA (1) | CA2569914A1 (en) |
| DE (1) | DE602005012270D1 (en) |
| DK (1) | DK1766301T3 (en) |
| ES (1) | ES2321316T3 (en) |
| FR (1) | FR2871559B1 (en) |
| PL (1) | PL1766301T3 (en) |
| WO (1) | WO2006005832A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614987A (en) * | 2015-07-03 | 2018-01-19 | 三菱电机株式会社 | Heat pump assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007010139B4 (en) * | 2007-02-28 | 2021-02-11 | Stiebel Eltron Gmbh & Co. Kg | Heat pump device |
| US9404650B2 (en) * | 2009-06-30 | 2016-08-02 | M. Alexandre Lapierre | Boiler with improved hot gas passages |
| US10428745B2 (en) * | 2013-02-19 | 2019-10-01 | Ford Global Technologies, Llc | Charge motion control valve and intake runner system |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475920A (en) * | 1968-05-06 | 1969-11-04 | Gen Motors Corp | Keeping insulation dry |
| DE2842893A1 (en) * | 1978-10-02 | 1980-04-17 | Kueppersbusch | HEAT PUMP HEATING SYSTEM |
| DE3007675A1 (en) * | 1980-02-29 | 1981-09-10 | Al-Ko Polar Gmbh Maschinenfabrik, 8876 Jettingen-Scheppach | HEAT PUMP |
| FR2546281B1 (en) * | 1983-05-18 | 1990-04-06 | Fonderie Soc Gen De | FLUID CIRCUIT MEMBER, HEAT PUMP COMPRISING SAME, AND MANUFACTURING METHOD THEREOF |
| DE3871995T2 (en) * | 1987-03-12 | 1993-01-28 | Shinko Kogyo Kk | AIR CONDITIONING FOR BUILDING. |
| SE8903385L (en) * | 1989-10-13 | 1991-04-14 | Ivt Ind | HEAT PUMP PLANT WITH THE REFRIGERATOR CIRCUIT PROVIDED AS A REPLACEABLE DEVICE AND DEVICE FOR IMPLEMENTATION OF UNIT REPLACEMENT |
| US5080325A (en) * | 1990-11-14 | 1992-01-14 | Air Products And Chemicals, Inc. | Corrosion resistant stainless steel valve or fitting |
| US5299731A (en) * | 1993-02-22 | 1994-04-05 | L'air Liquide | Corrosion resistant welding of stainless steel |
| US5396039A (en) * | 1993-11-24 | 1995-03-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for assembling piping or components by TIG welding |
| US5642622A (en) * | 1995-08-17 | 1997-07-01 | Sunpower, Inc. | Refrigerator with interior mounted heat pump |
| DE19711621A1 (en) * | 1997-03-20 | 1998-09-24 | Emerson Electric Gmbh | Pressure-tight housing and method for its manufacture |
| DE19820818C2 (en) * | 1998-05-09 | 2002-12-05 | Viessmann Werke Kg | heat pump |
| US6634182B2 (en) * | 1999-09-17 | 2003-10-21 | Hitachi, Ltd. | Ammonia refrigerator |
| JP2002107010A (en) * | 2000-09-29 | 2002-04-10 | Fuji Koki Corp | Receiver dryer |
| FR2841331B1 (en) * | 2002-06-21 | 2005-02-25 | Mota | MULTITUBULAR EXCHANGERS AND METHOD OF MANUFACTURING THESE EXCHANGERS |
-
2004
- 2004-06-14 FR FR0406398A patent/FR2871559B1/en not_active Expired - Fee Related
- 2004-06-25 CN CNB2004100618797A patent/CN100351590C/en not_active Expired - Fee Related
-
2005
- 2005-05-30 US US11/629,508 patent/US20080196872A1/en not_active Abandoned
- 2005-05-30 AT AT05772999T patent/ATE420328T1/en not_active IP Right Cessation
- 2005-05-30 EP EP05772999A patent/EP1766301B1/en not_active Not-in-force
- 2005-05-30 WO PCT/FR2005/001323 patent/WO2006005832A1/en active Application Filing
- 2005-05-30 CA CA002569914A patent/CA2569914A1/en not_active Abandoned
- 2005-05-30 PL PL05772999T patent/PL1766301T3/en unknown
- 2005-05-30 DE DE602005012270T patent/DE602005012270D1/en active Active
- 2005-05-30 DK DK05772999T patent/DK1766301T3/en active
- 2005-05-30 ES ES05772999T patent/ES2321316T3/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614987A (en) * | 2015-07-03 | 2018-01-19 | 三菱电机株式会社 | Heat pump assembly |
| CN107614987B (en) * | 2015-07-03 | 2019-11-05 | 三菱电机株式会社 | Heat pump assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1766301B1 (en) | 2009-01-07 |
| DK1766301T3 (en) | 2009-05-11 |
| CN100351590C (en) | 2007-11-28 |
| EP1766301A1 (en) | 2007-03-28 |
| WO2006005832A1 (en) | 2006-01-19 |
| FR2871559A1 (en) | 2005-12-16 |
| US20080196872A1 (en) | 2008-08-21 |
| CA2569914A1 (en) | 2006-01-19 |
| PL1766301T3 (en) | 2009-06-30 |
| ATE420328T1 (en) | 2009-01-15 |
| DE602005012270D1 (en) | 2009-02-26 |
| ES2321316T3 (en) | 2009-06-04 |
| FR2871559B1 (en) | 2006-09-22 |
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